| Company | Timeline | Status | |
| Harrington Energy Storage System Ltd Director • Director  | 24 Apr 2023←1 Year 9 Months→4 Feb 2025  | Dissolved  | |
| Harrington Nurseries Limited Director • Director  | 31 Oct 2007←18 Years→Current  | Active  | |
| Harrington Nurseries Limited Director • Director  | 31 Oct 2007←17 Years→27 Mar 2025  | Active  | |
| Dominic Harrington Nurseries Limited Secretary • Unreported  | 27 Mar 2002←23 Years→Current  | Active  | |
